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| author | Kunwu Chan <chentao@kylinos.cn> | 2023-11-27 11:07:55 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-01-25 15:27:19 -0800 |
| commit | 9a523e1da6d88c2034f946adfa4f74b236c95ca9 (patch) | |
| tree | 02d5abae71a4c9569dee30c62e7fd8b7d99e9ca3 | |
| parent | ed8d023cfa97b559db58c0e1afdd2eec7a83d8f2 (diff) | |
| download | linux-stable-9a523e1da6d88c2034f946adfa4f74b236c95ca9.tar.gz linux-stable-9a523e1da6d88c2034f946adfa4f74b236c95ca9.tar.bz2 linux-stable-9a523e1da6d88c2034f946adfa4f74b236c95ca9.zip | |
powerpc/powernv: Add a null pointer check in opal_event_init()
[ Upstream commit 8649829a1dd25199bbf557b2621cedb4bf9b3050 ]
kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure.
Fixes: 2717a33d6074 ("powerpc/opal-irqchip: Use interrupt names if present")
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231127030755.1546750-1-chentao@kylinos.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal-irqchip.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/opal-irqchip.c b/arch/powerpc/platforms/powernv/opal-irqchip.c index d55652b5f6fa..391f50535200 100644 --- a/arch/powerpc/platforms/powernv/opal-irqchip.c +++ b/arch/powerpc/platforms/powernv/opal-irqchip.c @@ -275,6 +275,8 @@ int __init opal_event_init(void) else name = kasprintf(GFP_KERNEL, "opal"); + if (!name) + continue; /* Install interrupt handler */ rc = request_irq(r->start, opal_interrupt, r->flags & IRQD_TRIGGER_MASK, name, NULL); |